Optical fiber and method for making such fiber

Details Optical fiber and method for making such fiber Optical fiber and method for making such fiber

2007-12-25

2007-12-25

Font, Frank G. (Department: 2883)

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide core

C385S123000, C385S127000, C385S141000

Reexamination Certificate

active

11056870

ABSTRACT:
According to one example of the invention an optical fiber comprises: (i) silica based, rare earth doped core having a first index of refraction n1; (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2; wherein at least one of the core or cladding is doped with Al2O3, such that the ratio of max wt % to min wt % of Al2O3concentration is less than 2:1.

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JP09309738; Mar. 31, 1998; vol. 1998; No. 04; Abstract.

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